Choker



June 27, 1933. R' 52E-NICK 1,915,867

CHOKER Filed May l, 1931 v on thek liiie'2-2 Of Figui-9 l.

Patented .lune 27, 1933Y Unirse STATES p l EDWARD arnivicx, oF HOUSTON, TEXAS f cHoxEn l Application fiieanay 1, 1931. sei-iai No. 534,172.

Thisinvention relates to a choker. Y

One object of the invention is to provide a choker adapted to be incorporated into a flow line to restrain the flow of fluid therethrough. Y

In the production of oil, the fluid often flows from the well under strong pressure y and for reasons well known to those fainilar i with this industry, it is desirable to restrain the flow in order to prevent yinjury, to the well. The choker herein described has been specially designed for that purpose.l

Another object of the invention is to provide a choker of the character .described which is of such novel construction that the fluid flowing therethrough will be so baffled, or retarded, that the gritty substancein the fluid will not readily cut away the material and lenlarge the fluid passageway through the choker.

`Nith the Vabove and other objects in View this invention has particular relation to certain novel features of construction, arrangenient of parts, and use, an example which is given in this specification and illustratedin the accompanying drawing, wherein :l y

Figure l shows a longitudinal, sectional view of the choker.

Figure 2 showsa cross sectional View taken Figure 3 shows a cross sectional view taken on the line 3-3 of Figure l, and 1 Figure 4 shows a side view of a casing head and a flow line leading therefrom having the choker incorporated therein.

Referring now more particularly to the drawing, wherein like numerals of reference designate similar parts in each of the figures the numeral l designates a casing head, or other well head attached to the upper end of the well casing 2 and having a lateral flow` line 3 leading therefrom.

Incorporated into this flow line there isa tubular nipple 4, forming a housing, and having the glands 5,5 driven, or otherwise y These glands have the reduced aXial bores 6, 6 therethrough. i

Between the glands 5, there is an las-k sembly of baffle plates 7, 7 which are fitted closely within said housing... The plate 7 is held spaced from the .gland 5 in any suitable manner for example by the marginal annular l flange 8 and the plates 7 are, in a similar manner spaced from the plate 7', and from each other by the marginal annular flanges 8. The gland 6 may be spaced from said plate assembly in any preferred manner, as by the annular, inner end flange 9 carried'by said gland 6. f The plates 7 may be reinforced and further held spaced from each other and from the plate 7 by centralbosses l0 carried' by such plates'7. Enlarged baffle chambersv l1 are thus provided between the plate assembly and the said glands, as well as be-v tween the plates themselves'. f l Each baille plate has one or more restricted ports, as 412- therethrough, these ports being, preferably, out of alignment with bores 6, 6 and' the ports Vof each plate, beingstaggered with respect to the ports of adjacentplates.

The fluid enteringthrough the bore 6 will pass throughv said .chambers and ports successively and the fluid in yany chamber will y retard the oncoming fluid and will in yturn next succeeding chamber, and said fluid will finally passl from the choker out through the restricted bore 6. The velocity of the fluid will thus be reduced and the gritty substance therein will not quickly cut out and enlarge the passageway for fluid through the choker.

In case the ports through ,said baffle plate become too large to effectively ychoke the flow said plates may be readily removed and new ones substituted for them.

The drawing and description disclosewhat is now considered to be a preferred form of the invention by way of illustration yonly while the broadl principle of the invention will be defined bythe appended claim.

What I'claim is: p

l. A phoker for flow lines comprising a 'tubular housing, a gland in each end of the housing, each gland having an axial bore and one of said glands having an inner end flange, an assembly of cup shaped'baflle plates clamped in the housing between said glands, said baille plates having 'ports therethrough arranged in staggered relation, spacers be-l be retarded by the restricted portsv into the e5 Y n,

gland on the other side, said balle plates having ports therethrough arranged in staggered relation7 spacers between asadjacent baffle plates, each spacer being formed integrally with one plate and bearing against the central portion of the adjacent plate of the assembly whereby the assembly ofplates is reinforced throughout. Y i

In testimony whereof I have signed my name to this specification.

' EDWARD R. PENICK. 

